I started with a cheap plastic in my S&S, When I did the bus I put in a Sealand and I thought what luxury, this is the way to go. Later I used my friends Aqua magic style plus, I put the Aqua Magic in my bus!! The important dimension in an RV toilet is the distance from the waterline to the family jewels!! With the Sealand I had to be cautious or Mr Happy could go for a dip, this is not a problem with the Aqua Magic. Also and this is subjective and my opinion but I find the finish is superior on the Aqua Magic, I belive it is eaiser to keep clean. HTH Jim

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Remember, even at a Mensa convention someone is the dumbest person in the room!

Best place to find sealand china toilets is at Bontragers, they had a bunch of pallets of them discounted to sell. I didn't ask how much but they normally sell for less than half price and often a fraction of the lowest price you can find in other places, I have no connection with them other than that they are my favorite shopping mall lol and good people too lol.

I have the Thetford Aqua magic V in the old style. No Mr. Happy problems EVER and a cheap, dependable and easily repaired toilet. Mine was made in 74 so go figure the cost per mile or seating.

I would only sink more money in this feature IF I did not have a straight drop into the black tank...or near straight. The microphore will pump the stuff anyplace you want to place the black tank and I think the location can be above the toilet. If you don't need that you should stay simple and cheap. Macirators are a cruel joke except in the Microph system as I think the plumbing for that bad girl is nly 1.5 inches..

Make certain that you design in two vents for the black and gray tanks and a vent at each sink. Disgusting, intolerable conditions await those that deviate from this design criteria. Vents need to go pretty much straight up to the roof.

HTH,

John

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"An uneducated vote is a treasonous act more damaging than any treachery of the battlefield.The price of apathy towards public affairs is to be ruled by evil men." Plato “We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.”—Pla

I have the Thetford Aqua magic V in the old style. No Mr. Happy problems EVER and a cheap, dependable and easily repaired toilet. Mine was made in 74 so go figure the cost per mile or seating.

Make certain that you design in two vents for the black and gray tanks and a vent at each sink. Disgusting, intolerable conditions await those that deviate from this design criteria. Vents need to go pretty much straight up to the roof.

John

As an alternative to punching multiple holes in the roof, I used "Studa" (interior check valves) valves at the sinks. 7 years and no issues...or odors. One roof vent t'eed into both black and grey water holding tanks is suitable. An RV style vent cap will make for a water tight seal even in a curved roof area. I'm also using an Aqua Magic pot. It is offset by about 2' from the black water tank. Never had any problems at all with the setup. When assembling the 3" drain pipe, the edges were radiused for 'improved' flow. Not sure it was neccessary, but what the h..I would guess that the noise associated with macerators would be intrusive for some? Not really familiar with the newer units...but was a little too familiar with marine units.

JR

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JR Lynch , Charlotte, NC87 MC9, 6V92TA DDEC, HT748R ATEC

"Every government interference in the economy consists of giving an unearned benefit, extorted by force, to some men at the expense of others.”

I believe they are also referred to as studer or studor vents. I used them in my home when I remodeled the kitchen. You Must still use a P trap and the vent must be at least 3 inches above the P trap. Now as far as the black/grey vent having to go thru the roof, I would have to dissagree! My vent exits the upper side of my combo tank, goes upward to just above the tank and returns back downward thru the floor. Once thru the bay floor, it turns and goes rearward for about 4 inches. I have had no problems with drains or most importantly, no smells EVER!Ace

I sure can't argue with "actual" experience and don't want to. I had a young engineer working for me that shared one day that he thought experience was the most OVER RATED commodity in the world. I knew he was destined to fail and it only took him six months. NOTHING and I mean NOTHING succeeds like success.

That said: I think the double vent out of the black is some kind of spec. That advice about minimizing the penetrations through the roof is out of Da Book, as well. When good advice contradicts you gotta make an informed decision. That 74 Winnie has a roof that looks like a vent farm and I know they had solid motives even back then and the :science" of handling Poo and drain water hasn't evolved all that much. My advice is "no matter how many got away with cutting corners, go with the spec." And I am not saying anything any of you have done is cutting a corner. At the construction phase I would do some research and find out what the opt spec is and try to follow that. If it became an issue I would be thanking the spirits of buses gone by for the knowledge that I stand a pretty good chance of doing it your way. What is the authority in matters plumbing a RV and what does it say? Anybody have that book and is willing to share?

Thanks all,

John

Logged

"An uneducated vote is a treasonous act more damaging than any treachery of the battlefield.The price of apathy towards public affairs is to be ruled by evil men." Plato “We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.”—Pla